GB503162000工业金属管道设计规范en

GB

UDC

NATIONAL STANDARD OF THE PEOPLE′S REPUBLIC OF CHINA P GB 50316-2000

工业金属管道设计规范

Design code for industrial metallic piping

2000-09-26 Issued 2001-0-1-01 Implementation

National Bureau of Quality and Technology Supervision

Issued jointly by

Ministry of Construction，The People′s Republic of China

National Standard of the People’s Republic of China

P GB 50316 – 2000

工业金属管道设计规范

Design code for industrial metallic piping

Chief editorial unit：

Approved by： Former Ministry of Chemical Industry，PRC Ministry of Construction，PRC

Date of implementation：January 1，2001

China Plan Publishing Firm

Beijing

2000

Notice on issuing the national standard

《Design code for industrial metallic piping》

Jianbiao [2000] No.199

In line with the requirement of the《Formulation and revision plan of national standards for engineering construction in 1991》by the State Planning Commission（Jizonghe[1991] No.290），the《Design code for industrial metallic piping》formulated by the former Ministry of Chemical Industry jointly with other organizations concerned, reviewed by other organizations concerned, approved as a compulsory national standard, No. GB 50316-2000, is implemented as of January 1, 2001.

For this code, the management if the responsibility of the National Bureau of Petroleum and Chemical Industry, and China Global Chemical Engineering Company is responsible to explain in the concrete and the Standard & Quota Research Institution of the Ministry of Construction entrusts China Plan Publishing Firm to publish.

Ministry of Construction, PRC

Sep. 26，2000

Contents

1． General Stipulations………………………………………………………………………7

2． Nomenclature and Symbols………………………………………………………………8

2.1 Nomenclature………………………………………………………………………………8

2.2 Symbols……………………………………………………………………………………11

3． Design Condition and Design Reference…………………………………………………18

3.1 Design Condition……………………………………………………………………………18

3.2 Reference……………………………………………………………………………………21

4． Materials……………………………………………………………………………………29

4.1 General Stipulations…………………………………………………………………………29

4.2 Service Temperature of Metallic Materials…………………………………………………29

4.3 Requirement for the Low Temperature Toughness Test of a Metallic material……………29

4.4 Requirements for Application of Materials…………………………………………………32

5． Selection of Piping Components…………………………………………………………35

5.1 General Stipulation…………………………………………………………………………35

5.2 Pipes…………………………………………………………………………………………35

5.3 Bends and Miter Bends……………………………………………………………………36

5.4 Piping and Branch Connection……………………………………………………………36

5.5 Valves………………………………………………………………………………………41

5.6 Flanges………………………………………………………………………………………42

5.7 Gasket………………………………………………………………………………………43

5.8 Fasteners……………………………………………………………………………………43

5.9 Requirements for selection of the connection structure of piping components……………44

5.10 Piping Specialties……………………………………………………………………………46

5.11 Piping Components with the Non-Metallic Liner…………………………………………47

6． Calculation of Pressure-Resistance Strength of Metallic Piping Components…………48

6.1 General Stipulations…………………………………………………………………………48

6.2 Straight Pipe…………………………………………………………………………………48

6.3 Miter Bends…………………………………………………………………………………49

6.4 Reinforcement of branch connections………………………………………………………52

6.5 Non-standard Reducer………………………………………………………………………59

6.6 Flat Cover……………………………………………………………………………………62

6.7 Special Flange and Blinding Flange………………………………………………………63

7． Determination of Pipe Diameter and Calculation of Pressure Loss……………………65

7.1 Determination of Pipe Diameter……………………………………………………………65

7.2 Pressure Loss in Mono-phase Flow Piping…………………………………………………66

7.3 Pressure Loss of Dual-phase Fluid of Gas-liquid Flow in Piping…………………………67

8． Layout of Piping……………………………………………………………………………68

8.1 Piping on Ground……………………………………………………………………………68 I General stipulations……………………………………………………………………68 II Net overhead height and net distance between pipes…………………………………68

III General requirement for layout………………………………………………………69 IV Requirement for layout of category B fluid piping……………………………………71 V Layout of valves………………………………………………………………………72 VI Setting of discharging gas at high point and discharging liquid at low point………72 VII Position of vents………………………………………………………………………73

8.2 Piping in Ditch……………………………………………………………………………73

8.3 Underground Buried Piping……………………… …… 此处隐藏：20972字，全部文档内容请下载后查看。喜欢就下载吧 ……